1/4-20 x 3/4 Brass Flat Head Socket Cap Screw is intended for applications where brass material and flat-head socket geometry are both called out by the drawing or bill of materials.

This head style differs from button head, low head, and cylindrical socket head screws because the head is designed to nest into a matching countersunk seat. Typical uses include fixtures, housings, and low-load mechanical assemblies, where reduced projection, socket-drive access, and a clean exposed surface can matter.

Its nonferrous construction and machinable character make it useful in panels, fixtures, enclosures, and light-duty mechanical assemblies where brass is already specified. For this 1/4-20 thread and 3/4 in. length, review the body diameter, head diameter, head height, hex socket size, and key engagement before approving the fastener for a countersunk assembly. Cold Headers provides purchasing support for hard-to-find socket screws and exact-size replacement hardware used in industrial assemblies.

Technical Highlights

• Material: Brass
• Thread Size: 1/4-20
• Length: 3/4 in.
• Nominal Body Diameter: 0.250 in.
• Head Diameter: 0.480-0.531 in.
• Head Height: 0.161 in.
• Hex Socket Size: 5/32 in.
• Drive Type: Internal Hex
• Minimum Key Engagement: 0.111 in.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.